SEOUL, South Korea — President Donald Trump said after North Korea's latest failed rocket launch that communist leader Kim Jong-Un will eventually develop better missiles, and "we can't allow it to happen." In a taped interview broadcast Sunday on CBS' "Face the Nation," the president would not discuss the possibility of military action, saying: "It is a chess game. I just don't want people to know what my thinking is." Separately, Trump's national security adviser, Army Lt. Gen. H.R. McMaster, said North Korea's most recent missile test represents "open defiance of the international community." He said North Korea poses "a grave threat," not just to the U.S. and its Asian allies, but also to China. Speaking on "Fox News Sunday," McMaster said it is important "for all of us to confront this regime, this regime that is pursuing the weaponization of a missile with a nuclear ...